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CloudNative/Kubernetes/Base/k8s-rs.md

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+```
+apiVersion: apps/v1 # kubectl explian rs查看
+kind: ReplicaSet
+metadata:
+  name: myapp
+  namespace: default
+
+spec:
+  replicas: 2 # 副本数
+  selector: # 选择标签匹配的容器[与template中的匹配]
+    matchLabels:
+      app: myapp
+      release: v1
+  
+  template:
+    metadata:
+      name: app-demo
+      labels:
+        app:myapp
+        release: v1
+    spec:
+      container:
+        name: myapp-ct
+        image: xxx/myapp.v1
+        ports:
+          name: myapp-http
+          containerPort:80
+```